/*
 * Copyright (C) 2024 pedroSG94.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.pedro.library.util;

import com.pedro.common.TimeUtils;

/**
 * Created by pedro on 09/07/19.
 */
public class FpsListener {

  private int fpsCont = 0;
  private long ts = TimeUtils.getCurrentTimeMillis();
  private Callback callback;

  public interface Callback {
    void onFps(int fps);
  }

  public void setCallback(Callback callback) {
    this.callback = callback;
  }

  public void calculateFps() {
    fpsCont++;
    if (TimeUtils.getCurrentTimeMillis() - ts >= 1000) {
      if (callback != null) callback.onFps(fpsCont);
      fpsCont = 0;
      ts = TimeUtils.getCurrentTimeMillis();
    }
  }
}
